Concrete Products

MAR 2017

Concrete Products covers the issues that attract producers of ready mixed and manufactured concrete focusing on equipment and material technology, market development and management topics.

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24 • March 2017 NEWS SCOPE READY MIXED NRMCA revises Quality Certification Program Following Research, Engi- neering and Standards Committee review, the National Ready Mixed Concrete Association has released version 2 of the Quality Certification pro- gram, noting criteria and submission requirements simplified from the char- ter version. The certification pro- gram is a broad-based audit of a ready mixed concrete producer's quality plan. It reviews portions of a producer's Quality Management System, developed and supported by man- agement, and confirms or measures a) a company has competent professionals responsible for quality; b) production facilities and delivery vehicles conforming to industry standards; c) processes for specification review, mixture development and submittal, plus testing and evaluating ingredient materials and concrete mixtures; and, d) the quality system supports continuous improvement. A company attaining certification can establish itself as a leader and preferred provider in its local market, NRMCA contends. Improved quality can lead to stronger reputation plus increased profitability and sales. The association believes that widespread Quality Certifi- cation use will improve confidence in concrete construction; support evolution to performance-based specifications; and, result in saving of time and cost for industry stakeholders. FRESH, RETURNED CONCRETE RECYCLING STANDARD FOSTERS GREEN STEWARDSHIP ASTM International Committee C09 on Concrete and Concrete Aggre - gates' C1798, Specification for Returned Fresh Concrete for Use in a New Batch of Ready-Mixed Concrete, affords producers process, ver- ification, and record-keeping procedures to lower stockpile volume or reclaimer throughput. "This standard recognizes unused concrete in a fresh state as a potential ingredient for a new batch," says Texas Aggregates and Concrete Association President and ASTM C09 member Rich Szecsy. "Recycled fresh concrete can be treated as a raw-material compo- nent just like water, aggregates, and cement." Prior to C1798, he adds, ready mixed producers had some options for repurposing or recycling fresh concrete, but returned or leftover material was often disposed of in a landfill. "Because of this new standard, the industry can participate in a more sustainable construction practice in which millions of cubic yards of concrete can now be recycled in a way that is safe for end users and provides a more conscious approach to environmental stewardship," Szecsy affirms. — Conveying Passion NEW spunbond nanofi ber media developed by WAM ® Effi ciency 99.9995% with Cement It exceeds the requirements from CPMB-AQMD Assembled in USA Fully Compatible with previous versions Reduced fi lling time thanks to a lower pressure drop WAM Inc. Georgia Plant 75 Boulderbrook Circle Lawrenceville, GA 30045 T: +1 770 3396767 · F: +1 770 339 4727 · Conveyors | Feeders | Loading Spouts | Mixers | Valves | Level Indicators | Bin Dischargers | Dust Collectors | Screw Separators | Pipe Connections SILOTOP ™ Absolute Bin Vent Conveyors T: +1 770 3396767 · F: +1 770 339 4727 ·

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